Linux IP Commands

Display Current Config for all NIC's: ifconfig


Display Current Config for eth0: ifconfig eth0


Assign IP: ifconfig eth0 192.168.1.2


Ping: ping -c 3 192.168.1.1


Assign multiple IP's: ifconfig eth0:0 192.168.1.2


Assign second IP: ifconfig eth0:1 192.168.1.3


Disable network card: ifconfig eth0 down


Enable network card: ifconfig eth0 up


View current routing table: route "or" route -n


View arp cache: arp "or" arp -n


Assign IP/Subnet: ifconfig eth0 192.168.1.2 netmask 255.255.255.0


Assign Default Gateway: route add default gw 192.168.1.1


Trace Route: traceroute www.whatismyip.com


Trace Path: tracepath www.whatismyip.com


DNS Test: host www.whatismyip.com


Advanced DNS Test: dig www.whatismyip.com


Reverse Lookup: host 66.11.119.69


Advanced Reverse Lookup: dig -x 66.11.119.69

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